I'm learning how to program with Objective C 2.0. I don't have any previous experience. I am using the book "Programming in Objective-C 2.0 by Kochan.

I'm not sure why the following program isn't working. The original program in the book doesn't have the getchar() function. But that didn't work. I found out that scanf also reads the "enter" as "endl" so I inserted getchar. But this still doesn't work.

Can someone help me out? Thanks!

// program to reverse the digits of a number 123 -> 321
// from Programming in Objective-C 2.0 by Kochan